package main

import "fmt"

var t bool = true
var c = 10

//var a int = 10
//var b = 10
var (
	a int
	b bool
)

func main() {
	const LENGTH int = 1000
	const WIDTH int = 1000
	var area int = LENGTH * WIDTH
	//area = LENGTH * WIDTH
	fmt.Printf("面积为:%d", area)
	fmt.Println(a, b, c, LENGTH)
}
